2-(Difluoromethyl)-6-methyl-5-(trifluoromethoxy)pyridine-3-carboxaldehyde
2-(Difluoromethyl)-6-methyl-3-(trifluoromethoxy)pyridine-5-carboxaldehyde
6-(Difluoromethyl)-3-methyl-2-(trifluoromethoxy)pyridine-4-carboxaldehyde
2-(Difluoromethyl)-4-methyl-6-(trifluoromethoxy)pyridine-3-carboxaldehyde